31187931

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 45342720

約数和(自身を除く): 14154789

約数列:

[1, 3, 23, 47, 59, 69, 141, 163, 177, 489, 1081, 1357, 2773, 3243, 3749, 4071, 7661, 8319, 9617, 11247, 22983, 28851, 63779, 176203, 191337, 221191, 451999, 528609, 663573, 1355997, 10395977, 31187931]

約数ペア:

[(1, 31187931), (3, 10395977), (23, 1355997), (47, 663573), (59, 528609), (69, 451999), (141, 221191), (163, 191337), (177, 176203), (489, 63779), (1081, 28851), (1357, 22983), (2773, 11247), (3243, 9617), (3749, 8319), (4071, 7661)]